Complete the identity.sin ? [sin(5?) + sin 7?)] = ?
A. 
cos ? [cos(5?) + cos(7?)]
B. cos ? [cos(5?) + cos(7?)]
C. 
cos ? [cos(5?) - cos(7?)]
D. cos ? [cos(5?) - cos(7?)]
Answer: D
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Determine whether the specified paradox occurs.A city has 204 police officers to be apportioned among 4 precincts based on the population of each precinct. The populations are given in the following table. 
Does the Alabama paradox occur using Hamilton's method if the number of police officers is increased from 204 to 205?
A. Yes B. No
Add. Write a mixed numeral for the answer.16
10
A. 26
B. 27
C. 28
D. 27
Provide an appropriate response.The length of time (in minutes) that a person arriving at a train station must wait for a train is uniformly distributed with density function f(x) = 
where 0 ? x ? 20. Find the mean waiting time and the standard deviation.
What will be an ideal response?
Solve the problem.The product of 3 and the square of a number is 12. Find the number(s).
A. 2
B. 2
C. -2
, 2
D. -2, 2